Analytical model and optimisation design of surface-mounted PM motors with Halbach arrays accounting for semi-closed slots

被引：5
作者：
Jing, Libing [1 ]
Gong, Jun [1 ]
机构：
[1] China Three Gorges Univ, Coll Elect Engn & New Energy, Yichang, Peoples R China
来源：
IET ELECTRIC POWER APPLICATIONS | 2020年 / 14卷 / 11期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
electric potential; magnetic fields; permanent magnets; finite element analysis; permanent magnet motors; permanent magnet machines; air gaps; genetic algorithms; rotors; torque; analytical model; load air gap magnetic field; SMPM; Halbach array; surface-mounted PM motors; semiclosed slots; surface-mounted permanent-magnet machines; MAGNETIC-FIELD DISTRIBUTION; COGGING TORQUE; RADIAL FLUX;
D O I：
10.1049/iet-epa.2019.1038
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this study, an analytical model is proposed to calculate the magnetic field and electromagnetic torque (including cogging torque) in the surface-mounted permanent-magnet (SMPM) machines with Halbach arrays accounting for semi-closed slots. The analytical model can be used to calculate both no load and load air gap magnetic field of SMPM. The permanent magnets (PMs) on the rotor are arranged Halbach array and each pole is divided into four segments. Additionally, in order to improve the performance of the SMPM, the analytical model is combined with genetic algorithm to optimise some parameters of the motor. The analytical results from the proposed model have been compared with those issued from finite-element method. Finally, the 12-slot/8-pole motor is manufactured and the back-electromotive force, iron loss and load characteristics are validated by experiments.
引用
收藏
页码：2074 / 2081
页数：8
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